General Specifications - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide

General Specifications

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Protection and Features:
Electronic thermal motor protection against overload.
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• Temperature monitoring of the heatsink ensures that the frequency converter trips if the
temperature reaches 95 °C ± 5°C. An overload temperature cannot be reset until the
temperature of the heatsink is below 70 °C ± 5°C.
The frequency converter is protected against short-circuits on motor terminals U, V, W.
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• If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
Monitoring of the intermediate circuit voltage ensures that the frequency converter trips
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if the intermediate circuit voltage is too low or too high.
The frequency converter is protected against earth faults on motor terminals U, V, W.
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Mains supply (L1, L2, L3):
Supply voltage ....................................................................................................... 200-240 V ±10%
Supply voltage ............................................................. FC 301: 380-480 V / FC 302: 380-500 V ±10%
Supply voltage ........................................................................................... FC 302: 525-600 V ±10%
Supply frequency ............................................................................................................... 50/60 Hz
Max. imbalance between mains phases ................................................
True Power Factor (λ) .................................................................................. 0.92 nominal at rated load
Displacement Power Factor (cos ϕ) near unity ........................................................................ (> 0.98)
Switching on input supply L1, L2, L3 (power-ups) ............................................... maximum 2 times/min.
Environment according to EN60664-1 .................................... overvoltage category III/pollution degree 2
The unit is suitable for use on a circuit capable of delivering not more than 100.000
RMS symmetrical Amperes, 240/500/600 V maximum.
Motor output (U, V, W):
Output voltage .......................................................................................... 0 - 100% of supply voltage
Output frequency ............................................................. FC 301: 0.2 - 1000 Hz / FC 302: 0 - 1000 Hz
Switching on output ........................................................................................................... Unlimited
Ramp times ............................................................................................................. 0.01 - 3600 sec.
Torque characteristics:
Starting torque (Constant torque) .............................................................. maximum 160% for 1 min.
Starting torque (par. 1-70 High Starting Torque Time) ............................ maximum 180% up to 0.5 sec.
Overload current (Constant torque) ............................................................ maximum 160% for 1 min.
*Percentage relates to FC 300's nominal current.
Cable lengths and cross sections:
Max. motor cable length, screened/armoured ......................................... FC 301: 50 m / FC 302: 150 m
Max. motor cable length, unscreened/unarmoured .................................. FC 301: 75 m / FC 302: 300 m
Max. cross section to motor, mains, load sharing and brake (see section Electrical Data in the FC 300 Design
Guide MG.33.BX.YY for more information), (0.25 kW - 7.5 kW) ...................................... 4 mm
Maximum cross section to control terminals, rigid wire ......................... 1.5 mm
Maximum cross section to control terminals, flexible cable ............................................. 1 mm
Maximum cross section to control terminals, cable with enclosed core ........................... 0.5 mm
Minimum cross section to control terminals .......................................................................... 0.25 mm
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How to Select Your VLT
MG.33.B4.02 - VLT is a registered Danfoss trademark
± 3.0 % of rated supply voltage
2 / 10 AWG
2 /16 AWG (2 x 0.75 mm
2 /18 AWG
2 /20 AWG
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